diff --git a/includes/class-partnerexpo-core.php b/includes/class-partnerexpo-core.php
index 792be21..c367b3f 100644
--- a/includes/class-partnerexpo-core.php
+++ b/includes/class-partnerexpo-core.php
@@ -121,6 +121,8 @@ class Partnerexpo_Core {
 		 */
 		require_once plugin_dir_path( dirname( __FILE__ ) ) . 'public/class-partnerexpo-core-public.php';
 
+		require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/dependency/class-query-w-relevance.php';
+
 		$this->loader = new Partnerexpo_Core_Loader();
 
 	}
@@ -167,8 +169,8 @@ class Partnerexpo_Core {
 	private function define_public_hooks() {
 		$plugin_public = new Partnerexpo_Core_Public( $this->get_plugin_name(), $this->get_version() );
 
-		$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_styles' );
-		$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_scripts' );
+		$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'register_styles' );
+		$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'register_scripts' );
 		$this->loader->add_action( 'rest_api_init', $plugin_public, 'register_endpoint' );
 		$this->loader->add_action( 'init', $this, 'define_cpts' );
 		$this->loader->add_action( 'init', $this, 'define_taxonomies' );
diff --git a/includes/dependency/class-query-w-relevance.php b/includes/dependency/class-query-w-relevance.php
new file mode 100644
index 0000000..081820d
--- /dev/null
+++ b/includes/dependency/class-query-w-relevance.php
@@ -0,0 +1,130 @@
+<?php
+//
+// a WP_Query subclass which adds a Relevance score and sorts by it
+// https://github.com/GreenInfo-Network/WP_Query_WithRelevance
+//
+if (! defined( 'WPINC')) die;
+
+class WP_Query_WithRelevance extends WP_Query {
+    //
+    // search field DEFAULT weights
+    // the $args passed to this Query may/should specify weightings for specific taxonomies, meta keys, etc.
+    // but these act as defaults
+    //
+    var $DEFAULT_WEIGHTING_TITLE_KEYWORD = 1.0;
+    var $DEFAULT_WEIGHTING_CONTENT_KEYWORD = 0.25;
+    var $DEFAULT_WEIGHTING_TAXONOMY_RATIO = 10.0;
+
+    //
+    // constructor
+    // performs a standard WP_Query but then postprocesses to add relevance, then sort by that relevance
+    //
+	public function __construct($args = array()) {
+        // stow and unset the orderby param
+        // cuz it's not a real DB field that can be used
+		if ($args['orderby'] === 'relevance') {
+			$this->orderby = $args['orderby'];
+            $this->order = 'DESC';
+			unset($args['orderby']);
+			unset($args['order']);
+		}
+
+        // perform a typical WP_Query
+        // then if we weren't using a relevance sorting, we're actually done
+		$this->process_args($args);
+		parent::__construct($args);
+        if (! $this->orderby) return;
+
+        // okay, we're doing relevance postprocessing
+        $this->initialize_relevance_scores();
+        $this->score_keyword_relevance();
+        $this->score_taxonomy_relevance();
+        $this->orderby_relevance();
+
+        // debugging; you can display this at any time to just dump the list of results
+        //$this->display_results_so_far();
+	}
+
+    // initializing all posts' relevance scores to 0
+    private function initialize_relevance_scores() {
+		foreach ($this->posts as $post) {
+			$post->relevance = 0;
+		}
+    }
+
+    private function score_keyword_relevance() {
+        if (! $this->query_vars['s']) return; // no keyword string = this is a noop
+
+        $weight_title = @$this->query_vars['relevance_scoring']['title_keyword'];
+        $weight_content = @$this->query_vars['relevance_scoring']['content_keyword'];
+        if ($weight_title == NULL) $weight_title = $this->DEFAULT_WEIGHTING_TITLE_KEYWORD;
+        if ($weight_content == NULL) $weight_content = $this->DEFAULT_WEIGHTING_CONTENT_KEYWORD;
+        // print "score_keyword_relevance() Title keyword weight {$weight_title}\n";
+        // print "score_keyword_relevance() Content keyword weight {$weight_content}\n";
+
+        $words = strtoupper(trim($this->query_vars['s']));
+        $words = preg_split('/\s+/', $words);
+
+		foreach ($this->posts as $post) {
+			$title = strtoupper($post->post_title);
+            $content = strtoupper($post->post_content);
+
+            foreach ($words as $thisword) {
+                $post->relevance += substr_count($title, $thisword) * $weight_title;
+                $post->relevance += substr_count($content, $thisword) * $weight_content;
+            }
+		}
+    }
+
+    private function score_taxonomy_relevance() {
+        if (!isset($this->query_vars['tax_query']) || !is_array($this->query_vars['tax_query'])) return;  // no taxo query = skip it
+
+        // taxonomy relevance is only calculated for IN-list operations
+        // for other types of queries, all posts match that value and further scoring would be pointless
+
+        // go over each taxo and each post
+        // increase the post relevance, based on number of terms it has in common with the terms we asked about
+        // this is done one taxo at a time, so we can match terms by ID, by slug, or by name ...  and so we can apply individual weighting by that taxo
+		foreach ($this->query_vars['tax_query'] as $taxo) {
+            if (strtoupper($taxo['operator']) !== 'IN' or ! is_array($taxo['terms'])) continue; // not a IN-list query, so relevance scoring is not useful for this taxo
+
+            $taxoslug = $taxo['taxonomy'];
+            $whichfield = $taxo['field'];
+            $wantterms = $taxo['terms'];
+
+            $taxo_weighting = @$this->query_vars['relevance_scoring']['tax_query'][$taxoslug];
+            if ($taxo_weighting === NULL) $taxo_weighting = $this->DEFAULT_WEIGHTING_TAXONOMY_RATIO;
+            // print "score_taxonomy_relevance() Taxo {$taxoslug} weight {$taxo_weighting}\n";
+
+            foreach ($this->posts as $post) {
+                // find number of terms in common between this post and this taxo's list
+                $terms_in_common = 0;
+                $thispostterms = get_the_terms($post->ID, $taxo['taxonomy']);
+
+                foreach ($thispostterms as $hasthisterm) {
+                    if (in_array($hasthisterm->{$whichfield}, $wantterms)) $terms_in_common += 1;
+                }
+
+                // express that terms-in-common as a percentage, and add to this post's relevance score
+                $ratio = (float) $terms_in_common / sizeof($wantterms);
+                $post->relevance += ($ratio * $ratio * $taxo_weighting);
+            }
+        }
+	}
+
+    private function orderby_relevance() {
+        usort($this->posts, array($this, 'usort_sorting'));
+    }
+
+    private function display_results_so_far () {  // for debugging
+        foreach ($this->posts as $post) {
+            printf('%d %s = %.1f' . "\n", $post->ID, $post->post_title, $post->relevance) . "\n";
+        }
+    }
+
+    private function usort_sorting ($p, $q) {
+        // we force DESC and only trigger if orderby==='relevance' so we can keep this simple
+        if ($p->relevance == $q->relevance) return 0;
+        return $p->relevance > $q->relevance ? -1 : 1;
+    }
+}
\ No newline at end of file
diff --git a/public/class-partnerexpo-core-public.php b/public/class-partnerexpo-core-public.php
index 6e070df..415b3bb 100644
--- a/public/class-partnerexpo-core-public.php
+++ b/public/class-partnerexpo-core-public.php
@@ -79,6 +79,28 @@ class Partnerexpo_Core_Public {
 			'pexpo_tags'	 => $params['tags'] ?? '',
 		];
 
+		if ( ! empty( $params['tags'] ) ) {
+			$tag_string = $params['tags'];
+			$operator   = 'IN';
+			$delimiter  = ',';
+
+			if ( strpos( $tag_string, '+' ) !== false ) {
+				$operator  = 'AND';
+				$delimiter = '+';
+			}
+
+			$tag_slugs = explode( $delimiter, $tag_string );
+
+			$args['tax_query'] = [
+				[
+					'taxonomy' => 'pexpo_tags',
+					'field'    => 'slug',
+					'terms'    => $tag_slugs,
+					'operator' => $operator,
+				],
+			];
+		}
+
 		switch ($params['sort'] ?? 'relevance') {
 			case 'date_asc':
 				$args['orderby'] = 'date';
@@ -97,12 +119,13 @@ class Partnerexpo_Core_Public {
 				$args['order']   = 'DESC';
 				break;
 			case 'relevance':
+				$args['orderby'] = 'relevance';
+				break;
 			default:
-				// Default WordPress search sorting
 				break;
 		}
 
-		$query = new WP_Query($args);
+		$query = new WP_Query_WithRelevance($args);
 
 		$posts = [];
 
diff --git a/public/css/searchbox.css b/public/css/searchbox.css
index 1e918a8..88086d3 100644
--- a/public/css/searchbox.css
+++ b/public/css/searchbox.css
@@ -2,6 +2,9 @@
   --accent1: #950000;
   --accent2: #2c3489;
 
+  --darker: 30%;
+  --lighter: 40%;
+
   --bg: #f6f7fb;
   --panel: #ffffff;
   --panel2: #f2f4fb;
@@ -20,9 +23,9 @@
 
   --filterW: 170px;
   --filterWOpen: 360px;
-
-  --toggle-bg-color: #4281A4;
-  --toggle-nub-color: #FF686B;
+  --toggle-bg-off: #ca0000;
+  --toggle-bg-on: #10bb2d; 
+  --toggle-nub-color: #f6f7fb;
 
   --topbarH: 64px;
 
@@ -272,6 +275,8 @@
   flex-wrap: wrap;
   gap: 6px;
   row-gap: 6px;
+  padding-right: 3px;
+  max-width: 170px;
 }
 
 .pexpo-core-tag {
@@ -281,7 +286,11 @@
   border: 1px solid #333333ce;
   color: var(--text);
   background: #99999930;
-  white-space:nowrap;
+  white-space: wrap;
+  word-wrap: break-word;
+  hyphens: auto;
+  overflow: hidden;
+  max-width: 100%;
 }
 
 .pexpo-core-desc {
@@ -363,7 +372,7 @@
 .pexpo-core-filterPanelHeader {
   display:flex;
   align-items:center;
-  justify-content:space-between;
+  justify-content:center;
   padding: 10px 10px;
   border-bottom: 1px solid var(--stroke);
   color: rgba(16,24,40,.60);
@@ -377,7 +386,7 @@
   padding: 10px;
   flex-direction: column;
   overflow:auto;
-  min-height: 0;
+  height: 100%;
   gap: 10px;
 }
 
@@ -424,7 +433,7 @@
   left: 2px;
   transition: all 0.2s ease-in;
   box-shadow: 0 2px 5px rgba(0,0,0,0.2);
-}
+} 
 
 .pexpo-core-toggle input:checked + label::before {
   background: var(--toggle-bg-on);
@@ -435,6 +444,17 @@
   left: 27px;
 }
 
+#pexpo-core-filterApply {
+  margin-top: 10px;
+  padding: 8px 12px;
+  border-radius: 10px;
+  border: none;
+  background: var(--accent1);
+  color: #fff;
+  font-weight: 600;
+  cursor: pointer;
+}
+
 /* .pexpo-core-textarea {
   width: 100%;
   height: 210px;
@@ -456,6 +476,12 @@
   box-shadow: 0 0 0 3px rgba(44,52,137,.14);
 } */
 
+#pexpo-core-emptyResult {
+  padding:20px;
+  color:var(--text);
+  display:none;
+}
+
 .pexpo-core-hint {
   margin-top: 8px;
   color: rgba(16,24,40,.60);
diff --git a/public/js/searchbox.js b/public/js/searchbox.js
index 07d9f43..056f9f1 100644
--- a/public/js/searchbox.js
+++ b/public/js/searchbox.js
@@ -1,340 +1,366 @@
 document.addEventListener('DOMContentLoaded', () => {
-  // ---------- DOM Elements ----------
-  const shell = document.getElementById("pexpo-core-shell");
-  const topbar = document.getElementById("pexpo-core-topbar");
+  // We instantiate the class when the DOM is ready
+  new PartnerExpoSearch();
+});
 
-  const filterWrap = document.getElementById("pexpo-core-filterWrap");
-  const filterBtn = document.getElementById("pexpo-core-filterBtn");
-  const filterDrawer = document.getElementById("pexpo-core-filterDrawer");
-  const drawerBackdrop = document.getElementById("pexpo-core-drawerBackdrop");
+class PartnerExpoSearch {
+  constructor() {
+    this.els = {
+      shell: document.getElementById("pexpo-core-shell"),
+      topbar: document.getElementById("pexpo-core-topbar"),
+      filterWrap: document.getElementById("pexpo-core-filterWrap"),
+      filterBtn: document.getElementById("pexpo-core-filterBtn"),
+      filterDrawer: document.getElementById("pexpo-core-filterDrawer"),
+      drawerBackdrop: document.getElementById("pexpo-core-drawerBackdrop"),
+      filterFTag: document.getElementById("pexpo-core-tag-toggle"),
+      filterTags: document.getElementById("pexpo-core-tags"),
+      qInput: document.getElementById("pexpo-core-q"),
+      masonry: document.getElementById("pexpo-core-masonry"),
+      measure: document.getElementById("pexpo-core-measure"),
+      emptyResult: document.getElementById("pexpo-core-emptyResult"),
+      count: document.getElementById("pexpo-core-count"),
+      layoutMeta: document.getElementById("pexpo-core-layoutMeta"),
+      sortSelect: document.getElementById("pexpo-core-sortSelect"),
+      filterApply: document.getElementById("pexpo-core-filterApply"),
+    };
 
-  // const filterBody = document.getElementById("pexpo-core-filterBody");
-  // const filterLabel = document.getElementById("pexpo-core-filterLabel");
-  const filterFTag = document.getElementById("pexpo-core-tag-toggle");
-  const filterTags = document.getElementById("pexpo-core-tags");
+    this.state = {
+      filters: {
+        q: "",
+        sort: "relevance",
+        force_tags: false,
+        tags: [],
+        resultsPerPage: 20,
+        page: 1,
+      },
+      activeSortKey: "relevance",
+      results: [],
+      layoutQueued: false
+    };
 
-  const qInput = document.getElementById("pexpo-core-q");
-  const masonry = document.getElementById("pexpo-core-masonry");
-  const measure = document.getElementById("pexpo-core-measure");
+    this.SORTS = {
+      relevance: "Relevánsság (legjobb → legrosszabb)",
+      date_desc: "Dátum (új → régi)",
+      date_asc: "Dátum (régi → új)",
+      title_asc: "Cím (A → Z)",
+      title_desc: "Cím (Z → A)",
+    };
 
-  const count = document.getElementById("pexpo-core-count");
-  const layoutMeta = document.getElementById("pexpo-core-layoutMeta");
-  const sortSelect = document.getElementById("pexpo-core-sortSelect");
-
-  // ---------- State ----------
-  let filters = {
-    q: "",
-    sort: "relevance",
-    force_tags: false,
-    tags: [],
-    resultsPerPage: 20,
-    page: 1,
-  };
-
-  let activeSortKey = "relevance";
-  let results = [];
-
-  // ---------- Initialize MultiSelect Library ----------
-  if (typeof MultiSelect !== 'undefined') {
-      new MultiSelect(filterTags, {
-        // max: 20,
-        search: true,
-        selectAll: false,
-        onSelect: function(value) {
-          if (!filters.tags.includes(value)) {
-            filters.tags.push(value);
-          }
-          console.log('Updated filters.tags:', filters.tags);
-        },
-        onUnselect: function(value) {
-          filters.tags = filters.tags.filter(tag => tag !== value);
-          console.log('Updated filters.tags:', filters.tags);
-        }
-        });
-  } else {
-      console.warn("MultiSelect library not found. Filters will not work without it.");
-  }
-
-  // ---------- Sort Definitions ----------
-  const SORTS = {
-    relevance: "Relevánsság (legjobb → legrosszabb)",
-    date_desc: "Dátum (új → régi)",
-    date_asc: "Dátum (régi → új)",
-    title_asc: "Cím (A → Z)",
-    title_desc: "Cím (Z → A)",
-  };
-
-  // ---------- Helpers ----------
-  function escapeHtml(str) {
-    return String(str).replace(/[&<>"']/g, s => ({
-      "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#039;"
-    }[s]));
-  }
-
-  function encodeDataToURL(data) {
-    return Object
-      .keys(data)
-      .map(value => `${value}=${encodeURIComponent(data[value])}`)
-      .join('&');
-  }
-
-  function cardEl(r) {
-    const div = document.createElement("div");
-    div.className = "pexpo-core-card"; 
-    div.innerHTML = `
-      <div class="pexpo-core-imageWrap">
-        <img src="${escapeHtml(r.image || '')}" 
-             alt="${escapeHtml(r.title)}" 
-             style="width:100%; border-radius:10px; object-fit:cover;" />
-      </div>
-      <div class="pexpo-core-cardTop">
-        <a href="${escapeHtml(r.url)}" class="pexpo-core-title">${escapeHtml(r.title)}</a>
-      </div>
-      <div class="pexpo-core-desc">${escapeHtml(r.excerpt)}</div>
-      <div class="pexpo-core-foot">
-        <div class="pexpo-core-tags">
-            ${
-              r.tag != null
-                ? r.tag.map(element => `<span class="pexpo-core-tag">${escapeHtml(element)}</span>`).join('')
-                : ''
-            }
-        </div>
-        <div>${escapeHtml(r.date)}</div>
-      </div>
-    `;
-    return div;
-  }
-
-  // ---------- Ajax Function ----------
-  async function fetchData() {
-    // 1. Show loading state if needed
-    masonry.style.opacity = "0.5";
-    
-    try {
-      const response = await fetch(`/wp-json/pexpo/v1/query?${encodeDataToURL(filters)}`);
-      const data = await response.json();
-
-      results = data;
-
-      requestLayout();      
-      
-    } catch (error) {
-      console.error("Search failed:", error);
-      masonry.innerHTML = `<div style="padding:20px; color:red;">Hiba történt a keresés során.</div>`;
-    } finally {
-      masonry.style.opacity = "1";
+    if (this.els.shell) {
+      this.init();
     }
   }
 
-  // ---------- Layout & Masonry Logic ----------
-  const minCard = () => Number(getComputedStyle(document.documentElement).getPropertyValue("--cardMin")) || 240;
-  const gap = () => Number(getComputedStyle(document.documentElement).getPropertyValue("--gap")) || 12;
+  init() {
+    this.initMultiSelect();
+    this.initSortDropdown();
+    this.bindEvents();
+    this.syncTopbarHeight();
+    this.initResizeObserver();
+    
+    // Initial Fetch
+    this.fetchData();
+  }
 
-  let layoutQueued = false;
-  function requestLayout() {
-    if (layoutQueued) return;
-    layoutQueued = true;
-    requestAnimationFrame(() => {
-      layoutQueued = false;
-      applyMasonry();
+  // ---------- Initialization Helpers ----------
+
+  initMultiSelect() {
+    if (typeof MultiSelect !== 'undefined') {
+      new MultiSelect(this.els.filterTags, {
+        placeholder: 'Címkék kiválasztása',
+        search: true,
+        selectAll: false,
+        onSelect: (value) => {
+          if (!this.state.filters.tags.includes(value)) {
+            this.state.filters.tags.push(value);
+          }
+        },
+        onUnselect: (value) => {
+          this.state.filters.tags = this.state.filters.tags.filter(tag => tag !== value);
+        }
+      });
+    } else {
+      console.warn("MultiSelect library not found.");
+    }
+  }
+
+  initSortDropdown() {
+    if (!this.els.sortSelect) return;
+    this.els.sortSelect.innerHTML = Object.entries(this.SORTS)
+      .map(([k, label]) => `<option value="${this.escapeHtml(k)}">${this.escapeHtml(label)}</option>`)
+      .join("");
+    this.els.sortSelect.value = this.state.activeSortKey;
+  }
+
+  initResizeObserver() {
+    const ro = new ResizeObserver(() => {
+      this.syncTopbarHeight();
+      this.requestLayout();
+    });
+    ro.observe(this.els.shell);
+    ro.observe(this.els.masonry);
+  }
+
+  // ---------- Event Binding ----------
+
+  bindEvents() {
+    // Sort 
+    if (this.els.sortSelect) {
+      this.els.sortSelect.addEventListener("change", () => {
+        this.state.activeSortKey = this.els.sortSelect.value;
+        this.state.filters.sort = this.state.activeSortKey;
+        this.fetchData();
+      });
+    }
+
+    // Search 
+    this.els.qInput.addEventListener("keyup", (e) => {
+      if (e.key === "Enter") {
+        this.state.filters.q = this.els.qInput.value.trim();
+        this.fetchData();
+      }
+    });
+
+    // Tag Toggle
+    this.els.filterFTag.addEventListener("change", () => {
+      this.state.filters.force_tags = this.els.filterFTag.checked;
+    });
+
+    // Drawer Toggle
+    this.els.filterBtn.addEventListener("click", () => {
+        const isOpen = this.els.filterDrawer.classList.contains("pexpo-core-open");
+        this.setDrawerOpen(!isOpen);
+    });
+    
+    this.els.filterApply.addEventListener("click", () => {
+      this.fetchData();
+      this.setDrawerOpen(false);
+    });
+
+    this.els.drawerBackdrop.addEventListener("click", () => this.setDrawerOpen(false));
+    
+    document.addEventListener("keydown", (e) => {
+      if (e.key === "Escape" && this.els.filterDrawer.classList.contains("pexpo-core-open")) {
+        this.setDrawerOpen(false);
+      }
     });
   }
 
-  function getColumnCount() {
-    const w = masonry.clientWidth || masonry.getBoundingClientRect().width || 1;
-    const mc = minCard();
-    const g = gap();
+  // ---------- Fetch ----------
+
+  async fetchData() {
+    this.els.masonry.style.opacity = "0.5";
+
+    try {
+      const queryString = this.encodeDataToURL(this.state.filters);
+      const response = await fetch(`/wp-json/pexpo/v1/query?${queryString}`);
+      const data = await response.json();
+
+      this.state.results = data;
+      this.requestLayout();
+
+    } catch (error) {
+      console.error("Search failed:", error);
+      this.els.masonry.innerHTML = `<div style="padding:20px; color:red;">Hiba történt a keresés során.</div>`;
+    } finally {
+      this.els.masonry.style.opacity = "1";
+    }
+  }
+
+  // ---------- UI & Layout Methods ----------
+
+  setDrawerOpen(open) {
+    this.els.filterWrap.classList.toggle("pexpo-core-open", open);
+    this.els.filterBtn.setAttribute("aria-expanded", String(open));
+    
+    this.els.filterDrawer.classList.toggle("pexpo-core-open", open);
+    this.els.filterDrawer.setAttribute("aria-hidden", String(!open));
+    
+    this.els.drawerBackdrop.classList.toggle("pexpo-core-show", open);
+    this.els.shell.classList.toggle("pexpo-core-drawerOpen", open);
+
+    this.syncTopbarHeight();
+  }
+
+  syncTopbarHeight() {
+    const h = this.els.topbar.offsetHeight;
+    document.documentElement.style.setProperty("--topbarH", h + "px");
+  }
+
+  // ---------- Masonry Engine ----------
+
+  minCard() {
+    return Number(getComputedStyle(document.documentElement).getPropertyValue("--cardMin")) || 240;
+  }
+
+  gap() {
+    return Number(getComputedStyle(document.documentElement).getPropertyValue("--gap")) || 12;
+  }
+
+  requestLayout() {
+    if (this.state.layoutQueued) return;
+    this.state.layoutQueued = true;
+    requestAnimationFrame(() => {
+      this.state.layoutQueued = false;
+      this.applyMasonry();
+    });
+  }
+
+  getColumnCount() {
+    const w = this.els.masonry.clientWidth || this.els.masonry.getBoundingClientRect().width || 1;
+    const mc = this.minCard();
+    const g = this.gap();
     return Math.max(1, Math.floor((w + g) / (mc + g)));
   }
 
-  function measureCardHeights(cols, list) {
-    const w = masonry.clientWidth || 1;
-    const g = gap();
+  measureCardHeights(cols, list) {
+    const w = this.els.masonry.clientWidth || 1;
+    const g = this.gap();
     const colW = Math.floor((w - (cols - 1) * g) / cols);
-    measure.style.width = colW + "px";
-    measure.innerHTML = "";
+    
+    this.els.measure.style.width = colW + "px";
+    this.els.measure.innerHTML = "";
 
     const measured = list.map((r, idx) => {
-      const el = cardEl(r);
-      measure.appendChild(el);
+      const el = this.createCardElement(r);
+      this.els.measure.appendChild(el);
       const h = el.offsetHeight;
-      measure.removeChild(el);
+      this.els.measure.removeChild(el);
       return { r, idx, h };
     });
 
     return { measured, colW };
   }
 
-  function packRankAware(measured, cols, K = 6) {
+  packStandard(measured, cols) {
+    // 1. Create an array to track the current height of each column
     const colHeights = new Array(cols).fill(0);
+    
+    // 2. Prepare the array to store where each item goes
     const placements = [];
-    const queue = measured.slice(); 
 
-    while (queue.length) {
-      // Find shortest column
+    // 3. Loop through every item strictly in order
+    for (const item of measured) {
+      
+      // 4. Find the column that is currently the shortest
       let bestCol = 0;
       for (let c = 1; c < cols; c++) {
-        if (colHeights[c] < colHeights[bestCol]) bestCol = c;
+        if (colHeights[c] < colHeights[bestCol]) {
+          bestCol = c;
+        }
       }
 
-      // Look at top K items, pick the one that fits best (tallest) 
-      // or just the next one if you prefer strict ordering.
-      // Here we pick the tallest of the next K to fill gaps.
-      const lookN = Math.min(K, queue.length);
-      let pick = 0;
-      for (let i = 1; i < lookN; i++) {
-        if (queue[i].h > queue[pick].h) pick = i;
-      }
-
-      const picked = queue.splice(pick, 1)[0];
-      placements.push({ item: picked, col: bestCol });
-      colHeights[bestCol] += picked.h + gap();
+      // 5. Place the item there
+      placements.push({ item: item, col: bestCol });
+      
+      // 6. Update that column's height
+      colHeights[bestCol] += item.h + this.gap();
     }
+    
     return placements;
   }
 
-  function applyMasonry() {
-    const n = results.length || 0;
-    count.textContent = n;
-    masonry.innerHTML = "";
-    
-    const cols = getColumnCount();
+  // packRankAware(measured, cols, K = 6) {
+  //   const colHeights = new Array(cols).fill(0);
+  //   const placements = [];
+  //   const queue = measured.slice(); 
 
-    // Create Columns with pexpo-core class
+  //   while (queue.length) {
+  //     // Find shortest column
+  //     let bestCol = 0;
+  //     for (let c = 1; c < cols; c++) {
+  //       if (colHeights[c] < colHeights[bestCol]) bestCol = c;
+  //     }
+
+  //     const lookN = Math.min(K, queue.length);
+  //     let pick = 0;
+  //     for (let i = 1; i < lookN; i++) {
+  //       if (queue[i].h > queue[pick].h) pick = i;
+  //     }
+
+  //     const picked = queue.splice(pick, 1)[0];
+  //     placements.push({ item: picked, col: bestCol });
+  //     colHeights[bestCol] += picked.h + this.gap();
+  //   }
+  //   return placements;
+  // }
+
+  applyMasonry() {
+    const n = this.state.results.length || 0;
+    this.els.count.textContent = n;
+    this.els.masonry.innerHTML = "";
+    
+    if (n === 0) {
+      if(this.els.emptyResult) {
+        let emptyClone = this.els.emptyResult.cloneNode(true);
+        emptyClone.style.display = "block";
+        this.els.masonry.appendChild(emptyClone);
+      } else {
+        this.els.masonry.innerHTML = `<div style="padding:20px; color:#666;">Nincs találat.</div>`;
+      }
+      return;
+    }
+
+    const cols = this.getColumnCount();
     const colEls = [];
+    
+    // Create Columns
     for (let c = 0; c < cols; c++) {
       const col = document.createElement("div");
       col.className = "pexpo-core-mCol"; 
-      masonry.appendChild(col);
+      this.els.masonry.appendChild(col);
       colEls.push(col);
     }
 
-    const sliced = results.slice();
+    const sliced = this.state.results.slice();
+    const { measured } = this.measureCardHeights(cols, sliced);
+    // const placements = this.packRankAware(measured, cols, 6);
+    const placements = this.packStandard(measured, cols);
 
-    // Measure & Pack
-    const { measured } = measureCardHeights(cols, sliced);
-    const placements = packRankAware(measured, cols, 6);
-
-    // Render
     for (const p of placements) {
-      colEls[p.col].appendChild(cardEl(p.item.r));
+      colEls[p.col].appendChild(this.createCardElement(p.item.r));
     }
-
-    // layoutMeta.textContent = `${cols} oszlop • ${SORTS[activeSortKey]?.label || "Relevance"}`;
   }
 
-  // ---------- UI Events ----------
-
-  // Sort Dropdown
-  if (sortSelect) {
-    sortSelect.innerHTML = Object.entries(SORTS)
-      .map(([k, label]) => `<option value="${escapeHtml(k)}">${escapeHtml(label)}</option>`)
-      .join("");
-    sortSelect.value = activeSortKey;
-    sortSelect.addEventListener("change", () => {
-      activeSortKey = sortSelect.value;
-      filters.sort = activeSortKey;
-      fetchData();
-    });
+  createCardElement(r) {
+    const div = document.createElement("div");
+    div.className = "pexpo-core-card"; 
+    div.innerHTML = `
+      <div class="pexpo-core-imageWrap">
+        <img src="${this.escapeHtml(r.image || '')}" 
+             alt="${this.escapeHtml(r.title)}" 
+             style="width:100%; border-radius:10px; object-fit:cover;" />
+      </div>
+      <div class="pexpo-core-cardTop">
+        <a href="${this.escapeHtml(r.url)}" class="pexpo-core-title">${this.escapeHtml(r.title)}</a>
+      </div>
+      <div class="pexpo-core-desc">${this.escapeHtml(r.excerpt)}</div>
+      <div class="pexpo-core-foot">
+        <div class="pexpo-core-tags">
+            ${
+              Array.isArray(r.tag)
+                ? r.tag.map(element => `<span class="pexpo-core-tag">${this.escapeHtml(element)}</span>`).join('')
+                : ''
+            }
+        </div>
+        <div>${this.escapeHtml(r.date)}</div>
+      </div>
+    `;
+    return div;
   }
 
-  // Search
-  qInput.addEventListener("keydown", (e) => {
-    if (e.key === "Enter") {
-      filters.q = qInput.value.trim();
-      fetchData();
-    }
-  });
+  // ---------- Utilities ----------
 
-  // Tag Toggle
-  filterFTag.addEventListener("change", () => {
-    filters.force_tags = filterFTag.checked;
-  });
-
-  // Tags multiselect
-  filterTags.addEventListener("change", (value, text, element) => {
-    console.log('Change:', value, text, element);
-  });
-
-
-  // Filter Drawer Logic
-  function syncTopbarHeight() {
-    const h = topbar.offsetHeight;
-    document.documentElement.style.setProperty("--topbarH", h + "px");
+  escapeHtml(str) {
+    return String(str).replace(/[&<>"']/g, s => ({
+      "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#039;"
+    }[s]));
   }
 
-  function setOpen(open) {
-    filterWrap.classList.toggle("pexpo-core-open", open); // Updated class
-    filterBtn.setAttribute("aria-expanded", String(open));
-    
-    filterDrawer.classList.toggle("pexpo-core-open", open); // Updated class
-    filterDrawer.setAttribute("aria-hidden", String(!open));
-    
-    drawerBackdrop.classList.toggle("pexpo-core-show", open); // Updated class
-    shell.classList.toggle("pexpo-core-drawerOpen", open);
-
-    syncTopbarHeight();
+  encodeDataToURL(data) {
+    return Object
+      .keys(data)
+      .map(value => `${value}=${encodeURIComponent(data[value])}`)
+      .join('&');
   }
-
-  filterBtn.addEventListener("click", () => setOpen(!filterDrawer.classList.contains("pexpo-core-open")));
-  drawerBackdrop.addEventListener("click", () => setOpen(false));
-  document.addEventListener("keydown", (e) => {
-    if (e.key === "Escape" && filterDrawer.classList.contains("pexpo-core-open")) setOpen(false);
-  });
-
-  // // Apply JSON Filter
-  // function applyJson() {
-  //   try {
-  //     const parsed = JSON.parse(filterJson.value);
-  //     jsonError.classList.remove("pexpo-core-show");
-  //     filters = parsed;
-  //     filterLabel.textContent = (filters.category || "Custom");
-      
-  //     // Trigger new search with new filters
-  //     filters.q = qInput.value.trim();
-  //     fetchData();
-      
-  //     // Close drawer on success (optional)
-  //     // setOpen(false);
-  //   } catch (err) {
-  //     jsonError.classList.add("pexpo-core-show");
-  //   }
-  // }
-
-  // filterJson.addEventListener("keydown", (e) => {
-  //   if (e.key === 'Enter' && (e.ctrlKey || e.metaKey)) {
-  //     e.preventDefault();
-  //     applyJson();
-  //   }
-  // });
-
-  // Resize Observer
-  const ro = new ResizeObserver(() => {
-    syncTopbarHeight();
-    requestLayout();
-  });
-  ro.observe(shell);
-  ro.observe(masonry);
-
-  // Initial Load
-  initFilters();
-  syncTopbarHeight();
-  fetchData();
-
-  // --- Temporary Mock Response Generator (DELETE ME IN PRODUCTION) ---
-  function simulateBackendResponse(q) {
-     const count = filters.maxResults || 12;
-     const arr = [];
-     for(let i=0; i<count; i++) {
-        arr.push({
-            id: i,
-            title: `Item ${i} - ${q || 'Random'}`,
-            desc: "This is a placeholder description returned from the fake backend.",
-            score: Math.floor(Math.random()*100),
-            updated: new Date().toISOString().slice(0,10),
-            relevance: 0
-        });
-     }
-     return arr;
-  }
-});
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/public/partials/partnerexpo-core-public-searchbox.php b/public/partials/partnerexpo-core-public-searchbox.php
index fdb522a..8a22840 100644
--- a/public/partials/partnerexpo-core-public-searchbox.php
+++ b/public/partials/partnerexpo-core-public-searchbox.php
@@ -9,23 +9,29 @@
  * @package    Partnerexpo_Core
  * @subpackage Partnerexpo_Core/public/partials
  */
+
+$tags = get_terms([
+    'taxonomy' => 'pexpo_tags',
+    'hide_empty' => false,
+]);
+
 ?>
 
-<div class="pexpo-core-root pexpo-core-shell" id="shell">
-  <div class="pexpo-core-topbar" id="topbar">
-    <div class="pexpo-core-filterWrap" id="filterWrap">
-      <div class="pexpo-core-filterBtn pexpo-core-topHeight" id="filterBtn" role="button" aria-expanded="false" tabindex="0">
+<div class="pexpo-core-root pexpo-core-shell" id="pexpo-core-shell">
+  <div class="pexpo-core-topbar" id="pexpo-core-topbar">
+    <div class="pexpo-core-filterWrap" id="pexpo-core-filterWrap">
+      <div class="pexpo-core-filterBtn pexpo-core-topHeight" id="pexpo-core-filterBtn" role="button" aria-expanded="false" tabindex="0">
         <div class="pexpo-core-left">
           <span class="pexpo-core-icons-options" aria-hidden="true"></span>
-          <span class="pexpo-core-label" id="filterLabel">Filterek</span>
+          <span class="pexpo-core-label" id="pexpo-core-filterLabel"><?php echo esc_html__('Szűrők', 'partnerexpo-core'); ?></span>
         </div>
         <span class="pexpo-core-icons-down" aria-hidden="true"></span>
       </div>
     </div>
 
     <div class="pexpo-core-sortWrap pexpo-core-topHeight">
-      <label class="pexpo-core-sortLabel" for="sortSelect">Rendezés</label>
-      <select id="sortSelect" class="pexpo-core-sortSelect">
+      <label class="pexpo-core-sortLabel" for="pexpo-core-sortSelect"><?php echo esc_html__('Rendezés', 'partnerexpo-core'); ?></label>
+      <select id="pexpo-core-sortSelect" class="pexpo-core-sortSelect">
         </select>
     </div>
     
@@ -33,41 +39,44 @@
       <div class="pexpo-core-search" role="search">
         <span class="pexpo-core-icons-search" aria-hidden="true"></span>
         <form id="pexpo-core-qForm" action="javascript:void(0)">
-          <input id="pexpo-core-q" placeholder="Keresés..." autocomplete="off" />
+          <input id="pexpo-core-q" placeholder="<?php echo esc_attr__('Keresés...', 'partnerexpo-core'); ?>" autocomplete="off" />
         </form>
       </div>
     </div>
-  </div>
+  </div>  
 
-  <div class="pexpo-core-filterDrawerBackdrop pexpo-core-show " id="pexpo-core-drawerBackdrop" aria-hidden="true"></div>
+  <div class="pexpo-core-filterDrawerBackdrop " id="pexpo-core-drawerBackdrop" aria-hidden="true"></div>
   <div class="pexpo-core-filterDrawer" id="pexpo-core-filterDrawer" aria-hidden="true">
     <div class="pexpo-core-filterPanelHeader">
-      <span><b>Filters</b></span>
+      <span><b><?php echo esc_html__('Szűrők', 'partnerexpo-core'); ?></b></span>
     </div>
     <div class="pexpo-core-filterPanelBody">
       <div class="pexpo-core-toggle">
-          <span class="toggle-text">Címke kötelezése</span>
+          <span class="toggle-text"><?php echo esc_html__('Címke kötelezése', 'partnerexpo-core'); ?></span>
           <div class="toggle-wrapper">
             <input type="checkbox" id="pexpo-core-tag-toggle">
             <label for="pexpo-core-tag-toggle"></label>
           </div>
       </div>
-      <label for="pexpo-core-tags">Címkék</label>
-      <select id="pexpo-core-tags" data-placeholder="Opciók kiválasztása" multiple="multiple">
-        <!-- <option value="option1">Option 1</option>
-        <option value="option2">Option 2</option>
-        <option value="option3">Option 3</option> -->
+      <label for="pexpo-core-tags"><?php echo esc_html__('Címkék', 'partnerexpo-core'); ?></label>
+      <select id="pexpo-core-tags" data-placeholder="<?php echo esc_attr__('Címkék kiválasztása', 'partnerexpo-core'); ?>" data-search-text="<?php echo esc_attr__('Keresés...', 'partnerexpo-core'); ?>" multiple="multiple">
+        <?php foreach ($tags as $tag) : ?>
+          <option value="<?php echo esc_attr($tag->slug); ?>"><?php echo esc_html($tag->name); ?></option>
+        <?php endforeach; ?>
       </select>
+      <button id="pexpo-core-filterApply"><?php echo esc_html__('Alkalmaz', 'partnerexpo-core'); ?></button>
     </div>
   </div>
 
   <div class="pexpo-core-body">
     <div class="pexpo-core-metaRow">
-      <div id="pexpo-core-metaLeft"><b id="pexpo-core-count">0</b> találat</div>
-      <div id="pexpo-core-metaRight">Elrendezés: <span id="pexpo-core-layoutMeta">—</span></div>
+      <div id="pexpo-core-metaLeft"><b id="pexpo-core-count">0</b> <?php echo esc_html__('találat', 'partnerexpo-core'); ?></div>
     </div>
 
-    <div class="pexpo-core-masonry" id="pexpo-core-masonry" aria-live="polite"></div>
+    <div class="pexpo-core-masonry" id="pexpo-core-masonry" aria-live="polite">
+      
+    </div>
+    <div id="pexpo-core-emptyResult"><?php echo esc_html__('Nincs a szűrőnek megfelelő találat.', 'partnerexpo-core'); ?></div>
     <div id="pexpo-core-measure" style="position:absolute; left:-9999px; top:-9999px; width:300px; visibility:hidden;"></div>
   </div>
 </div>
\ No newline at end of file
diff --git a/public/search_demo.html b/public/search_demo.html
index 3e6f26f..489e2eb 100644
--- a/public/search_demo.html
+++ b/public/search_demo.html
@@ -6,7 +6,6 @@
   <title>Mock Search UI (Masonry)</title>
   <link rel="stylesheet" href="css/multiselect.css">
   <style>
-  /* [Core CSS - Same as before] */
   .pexpo-core-root { --accent1: #950000; --accent2: #2c3489; --darker: 30%; --lighter: 30%; --bg: #f6f7fb; --panel: #ffffff; --panel2: #f2f4fb; --stroke: rgba(16, 24, 40, .10); --stroke2: rgba(16, 24, 40, .14); --text: rgba(16, 24, 40, .92); --muted: rgba(16, 24, 40, .62); --shadow: 0 18px 45px rgba(16,24,40,.12); --r: 14px; --cardMin: 240; --gap: 12px; --filterW: 170px; --filterWOpen: 360px; --toggle-bg-off: #ca0000; --toggle-bg-on: #10bb2d; --toggle-nub-color: #f6f7fb; --topbarH: 64px; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji"; color: var(--text); line-height: 1.35; font-size: 14px; }
   .pexpo-core-root * { box-sizing: border-box; }
   .pexpo-core-shell { width: min(1100px, 96vw); height: min(720px, 92vh); background: linear-gradient(180deg, rgba(44,52,137,.05), transparent 42%), var(--panel); border: 1px solid var(--stroke); border-radius: calc(var(--r) + 2px); box-shadow: var(--shadow); overflow: hidden; display:flex; flex-direction:column; position: relative; isolation: isolate; }